Originally Posted by Roelof
The only thing I am afraid of is the temperature of the shoe what will transfer into the spring, otherwise the shoe has a better cooling....
not very sure on airflow inside the assembly but i would assume an rpm of 30000+ should be enuf for cooling it.
good idea to try this experiment out, though rotational mass should slightly increase with an alum clutch shoe and be a slight drag on the engine.
a lightened flywheel could offset the added mass